1 : go to your WAMP icon on your PC desktop screen and LEFT CLICK to open the menu, you will see MYSQL folder, CLICK to see MYSQL CONSOLE, open it.

2: now you have DOS screen ( a black screen ) :

A: if you already set a password, type it
B: if you did not do this step yet, write the following red text
B1: use mysql; and click ENTER on your keyboard
3: now write the following red text and click ENTER :

don't worry about this sign ( -> ) , because for example when you write ( UPDATE mysql.user ) and you click ENTER on your keyboard, a new line appear with this sign ( -> ), your command will execute when you write this sign ( ; ) at the end of your text and click ENTER.